1.Which is the Java equivalent of the following mathematical expression? c = (a

Question

1.Which is the Java equivalent of the following mathematical expression?

c = (a2 + b2)

2.

What is wrong with the following code?

int count = 2000 * 3000 * 4000;

3.

Consider the following Java variable names:

I. 1stInstance

II. basicInt%

III. empName_

IV. addressLine1

V. DISCOUNT

Which of the following options is correct?

4.

What is the output of the following code snippet?

String firstname = "William";

String lastname;

System.out.println("First: " + first);

System.out.println("Last: " + lastname);

5.

What happens to the fractional part when a division is performed on two integer variables?

Explanation / Answer

1)
c=Math.Sqrt(a2+b2);

2)
int count=2000*3000*4000;
the resulting output of the multiplication will be more than 32768 which is the max value of the integer

3) empName_

addressLine1

DISCOUNT

4)Both will give error
first is not a variable and lastname is not initialized.

5)What happens to the fractional part when a division is performed on two integer variables?

=>integer division in Java results in only the whole number part of the result, any fractional part is dropped

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